No Man's Sky: Does Location Affect Haunting Memento Drops?

In No Man's Sky, opening Haunting Mementos in different star systems, biomes, or space stations does not alter your reward yields or drop rates. Testing across multiple environments confirms that these consumable reward caches draw from a fixed global loot pool. System economy tiers, conflict levels, and Outlaw statuses have no effect on the items you receive.

Because opening conditions do not change your loot, do not spend warp fuel traveling to wealthy economies or Outlaw systems to unpack them. The best practice is to open them wherever you have the cargo space to manage the resulting items.

Drop Rate Testing Across Locations

Speculation that boundary-failing exotic planets, Tier 3 wealthy systems, or pirate-controlled Outlaw stations yield higher-tier upgrades is disproven by batch testing. Opening Haunting Mementos across varied planetary biomes and station types yields statistically identical loot distributions.

Opening Location Tested	System or Environment Type	Observed Loot Variance	Recommended Action
Planetary Surface	Harsh or boundary anomaly planet	Standard global distribution	Open on-site only if inventory allows
Space Station	Regulated 3-Star wealthy economy	Identical to planetary rolls	Do not warp here specifically to unpack
Outlaw Station	Pirate-controlled system	Identical to regulated rolls; no Outlaw bias	Avoid traveling solely to open caches
Freighter Interior	Any star system	Identical global distribution	Best location for sorting and bulk opening

The game rolls the contents of a Haunting Memento upon interaction without referencing local system variables. As a result, stockpiling mementos for specific star systems only consumes cargo slots without improving your returns.

What Haunting Mementos Yield

Haunting Mementos are obtained by defeating boundary horrors during planetary boundary breaches, clearing haunting anomalies, and completing spectral milestones. Like Suspicious Packets or Salvaged Glass, they stack in your inventory until opened.

When unpacked, mementos provide items across three primary categories:

Trade Commodities: Anomalous items and standard resources that can be sold at galactic trade terminals or archives for quick Unit gains.
Refining Inputs: Boundary relics and anomalous materials that can be processed directly inside personal or base refiners to yield Nanites.
Technology Modules: Procedural upgrades that can either be installed into your gear or sold to technology merchants on space stations for Nanites.

Always check anomalous components in a refiner interface before selling them for Units. Items that appear to be low-value commodities often yield significant Nanite returns when processed.

How to Efficiently Batch-Open Mementos

Because unpacking generates individual loose items that may not match your existing stacks, opening mementos with a full exosuit can quickly clog your inventory. Manage your stacks using the following workflow:

Clear Inventory Space: Ensure you have at least eight to ten empty cargo slots in your active exosuit or starship before opening a stack.
Choose a Staging Area: Open your mementos inside a freighter base or planetary outpost where you have direct access to storage containers and trade terminals.
Sort Unpacked Items: Group your rewards into immediate trade commodities, refiner ingredients, and technology modules.
Refine Nanite Items: Load Nanite-yielding anomalous materials into your refiners immediately to clear cargo space while continuing to open remaining mementos.
Liquidate Excess Gear: Sell trade commodities at a terminal, and exchange unwanted technology modules with space station merchants to maximize your Nanite reserves.